Senior Backend Engineer - Scale A €38B Fintech Platform

Trading-21; Santander; Remote; EUR 60,000 - 90,000; Full time

Job summary

Trading-21 is seeking a Senior Software Engineer (Backend) for its fully remote engineering team. You will design, develop, and maintain scalable backend systems powering innovative products, collaborating with engineers, product managers, and designers across all development phases.

Occasional travel for team meetups may be required, with remote work centered globally. The role emphasizes proactive problem solving, strong backend tech knowledge, and delivering high-quality software solutions

Qualifications

• Bachelor's or Master's degree in Computer Science, Engineering, or related field.
• 5+ years of professional backend software development experience.
• Proficiency in one or more backend languages (Python, Java, Node.js, Go).
• Experience with relational databases (PostgreSQL, MySQL) and/or NoSQL databases.

Responsibilities

• Design, develop, test, deploy, maintain, and improve backend software.
• Collaborate with front-end teams, product managers and designers to deliver features.
• Mentor junior engineers and participate in code reviews to ensure quality.
• Optimize performance and scalability of backend systems.
• Contribute to architectural decisions and best practices.

Skills

Backend development

Python

Java

Node.js

Go

SQL/NoSQL databases

Education

Bachelor's/Master's degree in CS/Engineering or related field

Tools

PostgreSQL

MySQL

NoSQL databases

Job description

Our client, a cutting-edge technology firm, is seeking a highly skilled Senior Software Engineer (Backend) to join their fully remote engineering team. In this role, you will design, develop, and maintain scalable and robust backend systems that power their innovative products. You will work with a talented team of engineers, collaborate on architectural decisions, and contribute to all phases of the development lifecycle. We are looking for a proactive problem-solver with a strong understanding of backend technologies and best practices. This is an excellent opportunity to contribute to impactful projects from anywhere, with a focus on building high-quality software solutions. While the role is remote, occasional travel for team meetups may be required, but the primary mode of operation is remote, allowing flexibility for individuals based in regions like Córdoba .

About the Role

Our client, a cutting-edge technology firm, is seeking a highly skilled Senior Software Engineer (Backend) to join their fully remote engineering team. In this role, you will design, develop, and maintain scalable and robust backend systems that power their innovative products. You will work with a talented team of engineers, collaborate on architectural decisions, and contribute to all phases of the development lifecycle. We are looking for a proactive problem-solver with a strong understanding of backend technologies and best practices. This is an excellent opportunity to contribute to impactful projects from anywhere, with a focus on building high-quality software solutions. While the role is remote, occasional travel for team meetups may be required, but the primary mode of operation is remote, allowing flexibility for individuals based in regions like Córdoba .

Key Responsibilities

• Design, develop, test, deploy, maintain, and improve backend software.
• Manage individual project priorities, deadlines, and deliverables.
• Write clean, efficient, and well-documented code.
• Collaborate with front-end developers, product managers, and designers to deliver features.
• Participate in code reviews to ensure code quality and share knowledge.
• Troubleshoot and debug production issues.
• Contribute to architectural discussions and technology decisions.
• Mentor junior engineers and share best practices.
• Optimize application performance and scalability.

Requirements

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 5+ years of professional experience in backend software development.
• Proficiency in one or more backend programming languages (e.g., Python, Java, Node.js, Go).
• Experience with relational databases (e.g., PostgreSQL, MySQL) and/or NoSQL databases